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BYTEORDER
Section: Linux Programmer's Manual (3)
Updated: 1993-04-15
Index
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NAME
htonl, htons, ntohl, ntohs - convert values between host and network
byte order
SYNOPSIS
#include <arpa/inet.h>
uint32_t htonl(uint32_t hostlong);
uint16_t htons(uint16_t hostshort);
uint32_t ntohl(uint32_t netlong);
uint16_t ntohs(uint16_t netshort);
DESCRIPTION
The
htonl()
function converts the unsigned integer hostlong
from host byte order to network byte order.
The
htons()
function converts the unsigned short integer hostshort
from host byte order to network byte order.
The
ntohl()
function converts the unsigned integer netlong
from network byte order to host byte order.
The
ntohs()
function converts the unsigned short integer netshort
from network byte order to host byte order.
On the i386 the host byte order is Least Significant Byte first,
whereas the network byte order, as used on the Internet, is Most
Significant Byte first.
CONFORMING TO
POSIX.1-2001.
Some systems require the inclusion of
<netinet/in.h>
instead of
<arpa/inet.h>.
SEE ALSO
gethostbyname(3),
getservent(3)
COLOPHON
This page is part of release 3.05 of the Linux
man-pages
project.
A description of the project,
and information about reporting bugs,
can be found at
http://www.kernel.org/doc/man-pages/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- CONFORMING TO
-
- SEE ALSO
-
- COLOPHON
-
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